Method by which plugins and themes extend core WordPress functionality.

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4
votes
1answer
606 views

What is the action hook for save media-form on gallery tab?

I want to save a meta data to post parent when the media-form on gallery tab is saved( The submission button is "Save All Changes"). Which action hook can I use?
0
votes
2answers
248 views

How to deactivate my plugin upon deactivation of NextGen

i'm writing this plugin and i need to deactivate it when NextGen is deactivated: <?php /* Plugin Name: Plugin Name Description: Description Version: 1.0 Author: Author Author URI: Author URI */ ...
2
votes
1answer
215 views

deactivated_plugin hook: get the name of the plugin

I would like that every time any plugin previously activated, a function from my plugin be called, returning (at least) the name of the plugin, or something that allows to identify it (file name?). I ...
2
votes
2answers
1k views

Wordpress Admin Tooltip hooks

I want to know if there is a way to use Wordpress Adminitration Tooltips (de gray and blue ones) that are shown one you update your worpdress (3.x). Showing the new features. Thanks!
0
votes
1answer
184 views

Preset Widgets ONLY after site is initially created

I want to preset some widgets using functions included in my theme ONLY after a site is initially created (my theme is the default for all new sites in my instance of WordPress). I DO NOT want my ...
1
vote
3answers
1k views

What hooks to hook onto for automatic cache clearing

I have a WP-site with not that many writes, but quite a few reads and a few specific hotspots in the templates that I'd like to cache pretty aggressively with my own PHP-caching mechanism. I could ...
1
vote
0answers
81 views

Can I hook into wp_update_core outside of the admin?

I'm trying to bring some of the admin functionality to a custom front end in WordPress. Questions of security and pragmatism of this aside, is there an available hook to trigger wp_update_core outside ...
0
votes
1answer
388 views

How to change database values on theme update

I have a theme released into the wild but have not prefixed the post type appropriately. Yes, I know, it's a shame and I regret it :( So, I am currently using acme as the post type name, but I' like ...
1
vote
1answer
410 views

Which action does wp_update_user triggers?

I am working modifying an ecommerce plugin, and it makes uses of wp_update_user() function, and everytime the function runs another table (created by the plugin), gets updated too. The problem is that ...
6
votes
2answers
3k views

Earliest hook to reliably get $post/$posts

What's the earliest possible action I can hook into where I'll be able to access the global $post/$posts variables on both the front and back ends? I've tried looking through the Codex reference, Adam ...
1
vote
3answers
1k views

Is there a recover_post hook to go with trash_post hook?

I'm using the trash_post hook to set a flag in a custom table to indicate that this item is "deleted", but when the user chooses to restore that post, what hook can I use for that? I couldn't find ...
1
vote
1answer
40 views

Is there any way to allow a plugin to write over a previous version?

When installing a plugin, it will not install if the directory to which it is attempting to install already exists. This means that users of our plugin must first manually deactivate and delete the ...
4
votes
1answer
116 views

How Do I Load My Action Earlier Enough?

With add_action, I want to intercept as early as I can in my plugin and send a 304 Not Modified header per some rules. Does anyone know what the order is of events? When I view this page, it seems to ...
1
vote
1answer
549 views

Add custom column in custom post type edit page

I am using the Content Scheduler plugin to control the post expire. The plugin will add a expiry date column on the wp-admin/edit.php in page and post. However it doesn't show in custom post type page ...
4
votes
3answers
2k views

How many times can I hook into the same action?

I have a theme which includes some setup, using after_setup_theme but I'd like to write my own functions which also need to run after_setup_theme. I'd prefer to keep my stuff in a separate file. Can I ...
0
votes
1answer
361 views

Turning on output buffering in a wordpress plugin

My wordpress plugin uses sessions for handling various things, and on the production site I'm testing it on output buffering is not on by default so I'm getting a lot of messages such as these: ...
0
votes
1answer
1k views

get_current_screen and the WP_Screen class

So I'm trying to figure out how to properly use the get_current_screen. For learning sake, I'm just popping an alert for a specific page. I've looked at ...
0
votes
1answer
142 views

Bug: Post needs to be updated twice when adding action for save_post hook

My function does exactly what I want it to do: I'm trying to add/update meta fields in another post type when an "events" post is saved. Except the post needs to be updated twice for the information ...
0
votes
1answer
322 views

How can I modify the header of RSS feed items?

Specifically I would like to change the value of <dc:creator> in the feed items. In order to display the site name instead of the post author. I'm able to hook into the_title_rss , ...
0
votes
2answers
917 views

modify URL with mod_rewrite or hook

i'm trying to achieve the following: user enters this URL into browser http://mydomain.com/boston/categoryname/postname/ i then want to get the first "folder" and check whether or not it's ...
2
votes
1answer
2k views

Check before publishing, if already exist post with current custom field value

I have a custom post type with only 3 custom fields in it. $post_types = get_post_meta($post->ID,'post_types',true); $post_taxonomies = get_post_meta($post->ID,'post_taxonomies',true); ...
4
votes
1answer
395 views

How do I flush the rules after saving settings using the Settings API?

I'm using the Settings API to allow the user to toggle the has_archive option on some custom post types. When the user turns archives on or off, I want to flush the rewrite rules. If I had written ...
2
votes
1answer
455 views

In what sequence are the hooks fired when a post is “published”?

I would be grateful if someone could point out a link. I understand this may have a very lengthy answer but I searched and couldn't find any resource. Alternatively, it would also be nice if someone ...
1
vote
1answer
233 views

filter the_title problem in nav

Hi I have a problem with the_title filter: I have this code at my constructor: add_filter( 'the_title', array($this, 'change_title') ); and this as callback (for testing purposes) public ...
0
votes
1answer
375 views

Changing the text of Upload/Insert on Posts and Pages Screen

In wp-admin/includes/media.php I found this: function media_buttons($editor_id = 'content') { $context = apply_filters('media_buttons_context', __('Upload/Insert %s')); $img = '<img ...
5
votes
3answers
8k views

add_action hook for completely new post?

publish_post Runs when a post is published, or if it is edited and its status is "published". Action function arguments: post ID. -Plugin API Documentation I've added the publish_post ...
0
votes
1answer
96 views

Remove iPhone detection on login page

I have a wordpress site with a customized login page, the problem is when I go to that page on my iPhone, it detects it as an iPhone and adds the viewport meta tag, which normally would be great but ...
2
votes
2answers
1k views

action lifecycle

I'm looking for a documentation page where wordpress action lifecycle is explained. Does it exist? I can't understand if init is called before admin_head or viceversa (even if the name is ...
2
votes
1answer
404 views

When to call `add_rewrite_rule` for safety

I am starting to run into situations on projects where I am combining multiple plugins which all use add_rewrite_rule and flush_rewrite_rules at different points. As we all know, calling ...
-1
votes
1answer
2k views

NextGEN Gallery: Adding drop-down menu widget to gallery view without modifying plugin code [closed]

In NextGEN Gallery, I am able to add a dropdown menu that lets users filter a gallery to only show images that are tagged with a specific ngg_tag, simply by adding this to view/gallery.php in the ...
4
votes
1answer
6k views

How can I see all the actions attached to an “add_action” hook?

I'm working with the admin bar and trying to debug some of the menus and their priorities. I know several callbacks get bound to actions, such as this one: add_action( 'admin_bar_menu', ...
0
votes
1answer
612 views

Hook to See if Comment got a Reply?

Okay I know the title is pretty vague but I didn't know how to articulate it. Basically, I want a plugin that sends email notifications to users who opted-in only if they specifically got replied to. ...
3
votes
3answers
3k views

How to hook wp_list_pages?

How can I hook the wp_list_pages function so that it reads a value of a custom field and displays it instead of displaying the page title?
0
votes
1answer
384 views

Modify posts listing at back end

I want to modify posts listing at back end? Say, for a particular user, with role author, O want to list only few posts at posts listing. How can I do this?
0
votes
1answer
261 views

BuddyPress - A hook available to hide custom born date on public profile view?

I'm trying to hide some fields on public BuddyPress profiles, it is possible? Thanks in advance.
2
votes
1answer
316 views

Problem using role_has_cap hook

I'm trying to filter a capability check in order to work around the lack of filters to customize the user edit page in the admin area. But I can't seem to add filters to a hook, and I'm sure I'm ...
0
votes
1answer
148 views

Where should I hook into admin?

Where should I hook into the admin backend to check and see if the user is "active" as defined by the Membership Plugin. Or in other words, where can I hook into the WP admin header to check an ...
0
votes
1answer
3k views

add_action hook for publish_post not working

I can't get my function to trigger on post update or save. I've found a couple of other forum posts around with the same problem, but never an answer :( My code is as simple as: function ...
2
votes
1answer
303 views

Change WordPress RSS link with filter?

In my theme i use add_theme_support( 'automatic-feed-links' ); to enable the rss links. But i want to create an option to use Feedburner for the main rss feed, my problem is that i don't know how i ...
2
votes
1answer
404 views

Post-Registration, post-meta hook?

Is there a hook in WP to access meta data of a user JUST after they have registered and meta data has been added to the database? I was reading to use profile_update, but wouldn't that be invoked ...
0
votes
1answer
99 views

Distinguish between different widgets of the same type

I'm playing a little with wordpress widgets and I trying to do something like this: I created a sidebar and a widget to display a slider with latest posts. The jQuery loader is something like this: ...
0
votes
1answer
290 views

Why does hook priority affects admin menu permission error?

On this answer, there was this final comment For future readers, Roland's issue was a hook priority issue. Changing priority from 10 to 11 fixed it in his case The answer seems already closed, ...
2
votes
2answers
5k views

Filter the URL of next_posts_link & previous_posts_link

I am working with the qTranslate plugin to create a multi-lingual website. The plugin does a great job of translation except for on the next_posts_link & previous_posts_link template tags. When ...
0
votes
1answer
77 views

Change Title Type

I'd like to change the title field of a post in admin panel. I'd like this field was "textarea" instead of being "input type='text'". Would it be possible through any hook in functions.php? Thanks ...
2
votes
2answers
3k views

How do I “unhook” / de-register jQuery so that it's not called as part of wp_footer();?

I need to "unhook" jQuery from my wp_footer() ... it's being called automatically and I'm looking for something I can add to functions.php which prevents it from being called a second time in the ...
2
votes
1answer
293 views

How can I customize the upload error message in Wordpress?

After following the guide for How can I prevent uploading bmp image? to remove bmp (and in my case tiff images) from being uploaded, I tested and it is working, but noticed users are now getting the ...
2
votes
2answers
2k views

How can I remove css from a child theme?

I am using the theme twentyten as a parent theme for my child theme. I have other stylesheets I want to use and so I'm trying to figure out how to wp_deregister_style for the style.css sheet that is ...
2
votes
2answers
2k views

How to get post ID in post_updated action hook?

I want to execute a function, myfunction() [hypothetically named], whenever a page is updated in the admin. The function doesn't do anything to the content that is saved—it just runs an unrelated task ...
0
votes
1answer
236 views

Replacing a placeholder term with a session variable value in taxonomy filter

I have in my themes some code which will set a session variable. For the sake of example, it's a geolocation routine which will set to either USA, UK or ROW, resulting in: $_SESSION['region'] = ...
1
vote
1answer
1k views

Wordpress Delete hook with wp_delete_post function?

I have this action/hook: add_action( 'before_delete_post', 'my_delete_function' ); function my_delete_function($post_id) { global $wpdb; $achievement = get_the_category($post_id); $h = ...